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- Crystal Black Quartizite Panels
- Quartzite is a nonfoliated metamorphic rock composed almost entirely of quartz. It forms when a quartz-rich sandstone is altered by the heat, pressure, and chemical activity of metamorphism. These conditions recrystallize the sand grains and the silica ce
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アモイ紅山興株式会社
[検証済み]
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交渉可能な
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